1. IOR/R/15/5/393/20 Reference (shelfmark): IOR/R/15/5/393/20 Title: India Office Political and Secret Department Confidential Memoranda: B 400 Muscat, 1908-1928, J. G. Laithwaite Collection Area: India Office Records and Private Papers Languages: English Date Range: Aug 1928 Extent: 17pp